{
  "id": "sparxx-io",
  "name": "spArxx.io | Zero-Knowledge Blockchain Timestamping",
  "example": false,
  "url": "https://mcpshortlist.com/software/sparxx-io",
  "vendor": {
    "name": "spArxx.io",
    "url": "https://www.sparxx.io/",
    "domain": "sparxx.io"
  },
  "subcategory": null,
  "also_in": [],
  "categories": [
    {
      "id": "design-and-creative",
      "label": "Design and creative",
      "url": "https://mcpshortlist.com/design-and-creative"
    },
    {
      "id": "developer-tools",
      "label": "Developer tools",
      "url": "https://mcpshortlist.com/developer-tools"
    },
    {
      "id": "legal",
      "label": "Legal",
      "url": "https://mcpshortlist.com/legal"
    },
    {
      "id": "media-and-entertainment",
      "label": "Media and entertainment",
      "url": "https://mcpshortlist.com/media-and-entertainment"
    },
    {
      "id": "productivity",
      "label": "Productivity",
      "url": "https://mcpshortlist.com/productivity"
    }
  ],
  "sorted_by": "directory",
  "mcp": {
    "url": "https://gateway.sparxx.io/mcp",
    "remote": true,
    "host": "gateway.sparxx.io"
  },
  "score": null,
  "coverage": null,
  "assessment": null,
  "listed": {
    "source": {
      "id": "claude-directory",
      "name": "Claude connectors directory",
      "url": "https://claude.com/marketplace/connectors-plugins"
    },
    "url": "https://claude.ai/directory/d401ca21-adb0-480c-bc89-dbd8c6ebf3af",
    "since": "2026-09-14",
    "made_by": "partner",
    "works_with": ["claude", "claude-api", "claude-code", "claude-desktop"],
    "read_on": "2026-10-11",
    "categories": ["creative", "developer-tools", "legal", "media-entertainment", "productivity"]
  },
  "checked": {
    "vendor_site": null,
    "pricing": null,
    "actions": null
  },
  "compared_with": null,
  "checked_on": null,
  "compared_on": null,
  "scanned_on": null,
  "tested_on": null,
  "documented_on": null,
  "note": "Directory products carry their source under \"listed\". Documentary additions have \"listed\": null and their own \"origin\"; their MCP facts come from that source. An optional assessment gives action-level proofs, dates, sources and test contexts. Coverage measures supported capabilities, not overall quality; score remains null. A null under \"checked\", \"subcategory\" or \"compared_with\" means not done yet, never \"no\". Under \"compared_with\", a null \"connector\" means no connector evidence in this catalogue."
}